Miner&#39;s hand auger



Sept. 21, 1937. M, J, GRESAK 2,093,868

MINERS HAND AUGER Filed April 26, 1937 ,INVENTC JR MICHAEL JOSEPH GEESAK ATTORNEY Patented Sept. 21, 1937 UNl'i" ATENT FHQE This invention relates to miners hand augers.

An object of this invention is to provide an auger of the character described, adapted for drilling a hole straight in along the roof and which is adjustable for use in various positions. I

A further object of this invention is to provide a rugged and durable miners. auger of the character described, which shall be relatively inexpensive to manufacture, easy to manipulate, safe to use, and, withal, practical and efficient to a high degree.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope ofapplication will be indicated in the following claims.

In the accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention,

Fig. 1 is a side, elevational. view of a miners auger, embodying the invention, and illustrating in dotted lines the position of the parts in adjusted position;

Fig. 2 is a top plan view of my improved auger; and

Fig. 3 is a rear, elevational view of the same.

Referring now in detail to the drawing, l designates a miners auger, embodying the invention. The same comprises a curved breastplate ll. Riveted or otherwise fixed to the ends 12 of the breastplate are a pair of forwardly extending, upwardly and inwardly inclined, similar, symmetrically disposed members 13, each formed with an upwardly extending ear l4 having a screw-threaded opening. Screwed to the ears M are a pair of upwardly and inwardly inclined, forwardly extending, similar, symmetrically disposed connecting rods l5, provided with parallel, registering apertured ears "5 at the forward ends thereof.

Carried by the ears I6 is a transverse pivot pin 11 held on the ears by nuts l8. Pivotally mounted on the pin I! and disposed between the ears I6 is a frame 20. The frame com prises a top plate 2|, provided with a central transverse bearing receiving the cross pin I1. Extending from the rear and front ends of the plate 2i are a pair of parallel flanges 23 formed with aligned openings in which is journalled a rod 24 extending longitudinally of the frame and at right angles and below the pivot pin [1.

On the rod 24 is a collar 25 contacting one of the flanges 23. Attached to one end of the rod 24 is a bit 25 for drilling coal or for other drilling purposes. Connected to the opposite end of the rod 24 by a universal joint 30, is an inclined crank 3i having an offset crank handle 32. Fixed to the central portion of the breastplate ll-is a bracket 33 formed with an opening 3 1 loosely receiving therethrough the lower end 35 of the crank. It .will be noted that the crank is in- 1-0 clined to the rod 2'3 and is disposed centrally between the connecting rods l5.

Fixed to the rear end of the frame 2!; and extending rearwardly thereof, is a handle 36, for the purpose hereinafter explained.

It will now be understood that upon grasping the offset handle 32, the crank may be rotated for rotating the bit. Furthermore, the angle of the bit may be adjusted by pulling the'handle 36 up or down. In Fig. 1 of the drawing there is 20 shown in dotted lines an adjusted position of the auger.

With my improved auger, a hole straight in along the roof may be easily drilled without pounding the coal into slack.

It will thus be seen that there is provided a device in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A miners auger comprising a breastplate, 0 means on the breastplate for supporting a pin, a frame pivoted on said pin, a rod journalled on said frame, a bit on said rod, and a crank handle connected to said rod by universal joint, and means on said breastplate for journalling one end to said crank.

2. A miners auger comprising a breastplate, means on the breastplate for supporting a pin, a frame pivoted on said pin, a rod journalled on said frame, a bit on said rod, a crank handle connected to said rod by universal joint, means on said breastplate for journalling one end to said crank, and a handle attached to said frame.

3. A miners auger comprising a breastplate, a pair of connecting rods attached to said breastplate and supporting a pivot pin, a frame pivoted on said pin and between said connecting rods, a rod rotatably mounted on said frame, a bit attached to said rod, a crank connected to said rod by universal joint, and means attached to said breastplate for journalling one end of said crank.

4. A miners auger comprising a breastplate, a pair of connecting rods attached to said breastplate and supporting a pivot pin, a frame pivoted on said pin and between said connecting rods, a rod rotatably mounted on said frame, a bit attached to said rod, a crank connected to said rod by universal joint, means attached to said breastplate for journalling one end of said crank, and

a handle attached to said frame.

5. A miners auger comprising a curved breastplate, a member attached to the middle of said breastplate and formed with an opening, a pair of members attached to the ends of said breast-- plate, a pair of connecting rods screwed to said members, a pivot pin supported by said connecting rods, a frame pivoted on said pin'and disposed between said connecting rods, said frame being formed with a pair of parallel apertured flanges, a rod journalled in the apertures of said flanges, a bit attached to said rod, and a crank connected to said rod by universal joint and having a portion passing through said opening.

6. A miners auger comprising a curved breastplate, a member attached to the middle of said breastplate and formed with an opening, a pair of members attached to the ends of said breastplate, a pair of connecting rods screwed to said members, a pivot pin supported by said connecting rods, a frame pivoted on said pin and disposed between said connecting rods, said frame being formed with a pair of parallel apertured flanges,

, a pair of members fixed to the ends of said breastplate and extending forwardly and being inclined inwardly and upwardly and formed with screwthreaded openings, connecting rods screwed at the rear ends thereof within said screw-threaded openings and extending forwardly and being inclined upwardly and inwardly, said inclined rods being formed at the forward ends thereof with parallel apertured ears, a pivot pin carried by said ears, a frame pivoted at the central portion thereof on said pivot pin and being formed with a pair of parallel flanges having aligned openings, a rod journalled in the openings of said flanges, a bit attached to the forward end of said rod, and a crank connected at the upper .end thereof by a universal joint to the rear end of said rod, said crank having a portion loosely received within the opening'of said bracket and being formed with an intermediate offset handle portion.

8. A miners auger comprising a curved breastplate, a bracket attached to the central portion of said breastplate and being inclined downwardly and forwardly and formed with an opening, a pair of members fixed to the ends of said breastplate and extending forwardly and being inclined inwardly and upwardly and formed with screwthreaded openings, connecting rods screwed at the rear ends thereof within said screw-threaded openings and extending forwardly and being inclined upwardly and inwardly, said inclined rods being formed at the forward ends thereof with parallel apertured ears, a pivot pin carried by said ears, a frame pivoted at the central portion thereof on said pivot pin and being formed with a pair of parallel flanges having aligned openings, a rod journalled in the openings of said flanges, a bit attached to the forward end of said rod, a crank connected at the upper end thereof by a universal joint to the rear end of said rod, said crank having a portion loosely received within the openingof said bracket and being formed with an intermediate offset handle portion, and a handle attached to said frame and extending rearwardly thereof.

MICHAEL JOSEPH GRESAK. 

